Wideband multicarrier power control for a cellular PCS basestation tranmitter
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United States of America Patent
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Jul 3, 2001
Grant Date -
N/A
app pub date -
Dec 23, 1998
filing date -
Dec 23, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus and method for power control in a cellular basestation transmitter with multiple digital carrier channels. Each digital carrier signal is attenuated by a digital power control circuit under the control of a microcontroller, the amount of attenuation varying according to the number of active channels. The attenuated digital signals are combined and converted to an analog signal by a digital to analog converter, and the analog signal is amplified by an analog power control circuit also under control of the microcontroller. The combined digital signal may be clipped to reduce the signal peaks, the amount of clipping varying according to the number of active channels.
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